OC-0131 WP21 BRAPHYQS survey of differences in 192Ir and 60Co brachytherapy RAKR determinations. (May 2021) - Vijande, J.; Carlsson Tedgren, Å; Ballester, F.; Baltas, D.; Papagiannis, P.; Rivard, M.J.; Siebert, F.; DeWerd, L.; Perez-Calatayud, J.